First visualization

The following visualization is trying to visualize the relationship between housing price and the size of the living space. Since the original data is too big, the data are sorted based on zipcode.

Second visualization

The attached visualization is illustrating the correlation between the built year for the house and the average selling price within that year. The discrete data is arranged in chronological order. Since the data fluctuates a lot, a trendline would be considered as necessary to specify and indicate the overal trends.